Tricopter Oscillation

Junior Member

I've built a 2.5(ish) tricopter with a kk2 board and initially after building it, it was flying well. Lately it has developed a problem where it will go into an oscillation from which it does not recover and then crashes. I had modified the self-level p.gain and p.limit from 65 to 85, but have reset them and it still has problems.

The oscillation seems to be triggered by the wind sometimes or when I push it a little harder than normal.

The Warranty Voider

This problem stumped me for awhile but I ended up contributing it to being a bad choice of frame and motors. I had a 500 sized frame and was running some small 2200kv motors with 7x3.5 props. The frame was just too large for the props and motors and once it started to "death wobble", there was no pulling out of it. I came to this conclusion after swapping out the 2200kv motors for some 1300kv Blue Wonders swinging 9x4.7 props. Once I did this, the problem went away.